I have just purchased and fitted a Breathable Caravan Cover after paying out for some damp repairs. Ok, some might say Stable Door, Horse and Bolted. The repairer suggested I get a cover. He also suggested I leave a few windows open with the catches fixed in the ventilation position. I would be interested in any feedback on this. In particular problems with insects getting inside. I keep my caravan in storage and only visit it briefly once a month.